USD439950SExpiredUtility

Single tank water softener

77
Assignee: ECOWATER SYSTEMS INCPriority: Mar 24, 2000Filed: Mar 24, 2000Granted: Apr 3, 2001
Est. expiryMar 24, 2020(expired)· nominal 20-yr term from priority
Inventors:Christine FletcherChristopher I. HilgersKurt M. TaylorDavid T. Bardwell
77
PatentIndex Score
24
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for the single tank water softener, as shown.

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